2988303 - How to customize SAML2 error page or redirecting to your own URL

You have already configured ICF service and setup SAML2 logon for it.
It works well when user has a valid account. 
However, when user log on is failed due to any reasons, you want:

• end-users get a customized SAML2 error page.
• redirect the failed logon to your own website with guides for end-users about how to deal with the error.
• you do not wish the user to get user/password logon dialog prompt if SAML logon fails

NetWeaver ABAP system

HTTP 401, Logon failed, redirect , KBA , BC-SEC-LGN-SML , SAML 2.0 for ABAP , BC-MID-ICF-LGN , ICF System Login , How To